qmllint does not handle Behavior correctly

Warning: ./examples/qml/qmlextensionplugins/imports/TimeExample/Clock.qml:71:25: Property "angle" of type "double" is assigned an incompatible type "Behavior"
            Behavior on angle {
                        ^^^^^
Warning: ./examples/qml/qmlextensionplugins/imports/TimeExample/Clock.qml:85:17: Cannot assign multiple objects to a default non-list property
                SpringAnimation{ spring: 2; damping: 0.2; modulus: 360 }
                ^^^^^^^^^^^^^^^